CVE-2007-4771 (GCVE-0-2007-4771)
Vulnerability from cvelistv5 – Published: 2008-01-28 23:00 – Updated: 2024-08-07 15:08
VLAI
EPSS
VEX
Summary
Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
40 references
Date Public
2008-01-22 00:00
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"dateReserved": "2007-09-10T00:00:00.000Z",
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"date": "2026-09-17",
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"value": "Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information."
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{
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"value": "Desbordamiento de b\u00fafer basado en mont\u00edculo en la funci\u00f3n doInterval de regexcmp.cpp de libicu de International Components for Unicode (ICU) 3.8.1 y versiones anteriores, permite a atacantes locales o remotos dependientes del contexto provocar una denegaci\u00f3n de servicio (agotamiento de memoria) y posiblemente tiene otro impacto desconocido mediante una expresi\u00f3n regular que escribe una gran cantidad de datos en la pila de vuelta atr\u00e1s (backtracking).\r\nNOTA: algunos de estos detalles se han obtenido de informaci\u00f3n de terceros."
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"sourceIdentifier": "cve@mitre.org",
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"value": "CWE-399"
}
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"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\\/c\\+\\+:*:*",
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"value": "Heap-based buffer overflow in the doInterval function in regexcmp.cpp in libicu in International Components for Unicode (ICU) 3.8.1 and earlier allows context-dependent attackers to cause a denial of service (memory consumption) and possibly have unspecified other impact via a regular expression that writes a large amount of data to the backtracking stack. NOTE: some of these details are obtained from third party information."
},
{
"lang": "es",
"value": "Desbordamiento de b\u00fafer basado en mont\u00edculo en la funci\u00f3n doInterval de regexcmp.cpp de libicu de International Components for Unicode (ICU) 3.8.1 y versiones anteriores, permite a atacantes locales o remotos dependientes del contexto provocar una denegaci\u00f3n de servicio (agotamiento de memoria) y posiblemente tiene otro impacto desconocido mediante una expresi\u00f3n regular que escribe una gran cantidad de datos en la pila de vuelta atr\u00e1s (backtracking).\r\nNOTA: algunos de estos detalles se han obtenido de informaci\u00f3n de terceros."
}
],
"id": "CVE-2007-4771",
"lastModified": "2026-04-23T00:35:47.467",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
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"accessVector": "NETWORK",
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"baseScore": 9.3,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
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"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 10.0,
"obtainAllPrivilege": true,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
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}
]
},
"published": "2008-01-29T00:00:00.000",
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"tags": [
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],
"url": "http://www.vupen.com/english/advisories/2008/1375/references"
},
{
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{
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},
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},
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],
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},
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],
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},
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},
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-01-09T08:42:24+00:00",
"cve": "CVE-2007-4771",
"id": "CVE-2007-4771",
"initial_release_date": "2007-01-01T00:00:00+00:00",
"product_status:fixed": "96",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libicu incomplete interval handling",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-4771.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-08-23T00:59:01Z",
"cve": "CVE-2007-4771",
"id": "CVE-2007-4771",
"initial_release_date": "2023-02-15T06:10:58Z",
"product_status:recommended": "49",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2007-4771",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2007-4771.json",
"version": "15"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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